Rotary valve.



PATENTED JAN. 30, 1906.

C. W. MANZEL. ROTARY VALVE. APPLICATION IILIBD JAN. 21. 1903.

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U. WLMANZBL. ROTARY VALVE.

APPLICATION FILED JAN. 21', 1903.

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UNITED STATES PATENT OFFTOE.

UHARLES W. MANZEL, OF BUFFALO, NEW YORK, ASSIGNOR, BY MESNE ASSIGNMENTS, TO MANZEL BROTHERS 00., A CORPORATION OF NEl V YORK.

ROTARY VALVE.

Specification of Letters Patent.

Patented Jan. 30, 1906.

Application filed January 21, 1903. Serial No. 139,883.

To all whom it may concern: I

Be it known that I, CHARLES WV. MANZEL, a citizen of the United States, residing at Buffalo, in the county of Erie and State of New York, have invented a certain new and useful Improvement in Rotary Valves, of which the following is a specification.

This invention relates to an improved rotary valve and friction actuating device therefor, which is applicable chiefly to controlling compressed air for various purposes.

The object of the invention is to interniit' tently rotate a controlling-valve by means of friction mechanism, which in turn is actuated by a lever connected to a suitable source of reciprocation.

The invention. also relates to certain details of construction, all of which will be fully and clearly hereinafter described and claimed, reference being had to the accompanying drawings, in which Figure 1 represents a side elevation of the improved device. Fig. 2 is a vertical central section on line a c, Fig. 1. Fig. 3 is a detached section through the flanged disk and the ball friction devices on line b b, Fig. 2.

Fig. 4: is an end view of the device looking in the direction of the arrow V, Fig. 2. Fig. 5 is an enlarged detached view of the dust-cap. Fig. 6 is a detached face view of the rotary valve. Fig. 7 is a detached view of the connecting union. Fig. 8 is a detached face view of the rotary valve looking upon the pressure side or the side opposite that shown in Fig. 6. Fig. 9 is an end view of the locking-thimble. Fig. 10 is a detached inner end view of the shaft, showing the pins for rotating the valve and the exhaust-port. Fig. 1]. is a detached top plan view of the three-way oil-cock. Fig. 1.2 is an enlarged detached view of the two-part hinged clamp.

In referring to the drawings for the details of construction like numerals designate like parts.

The body 1 has a vertical face on one side and a reduced screw-threaded portion 2 on the opposite side and is provided with a central horizontal opening 3, in which a shaft 4 is journaled. The outer projecting end of the shaft 4 is screw-threaded, and a friction disk 5 is screwed upon said end and fastened in place by an outer locking-thimble 6, which is threaded on. the end of the shaft 4 and firmly against the disk. The disk is provided with a lateral outwardly-projecting flange 7, the inner annular wall or surface of which is curved in cross-section to form a ball-supporting groove 8.

A hub 9 is rigidly mounted on the thimble 6 and has three radial sockets 10, 11, and 12, two of which (numbered 10 and 11) extend oppositely from. each other and serve to sup port short rods 13, upon which ball clutch devices are adjustably mounted. A lever 141 has one end rigidly fartened in the remaining socket 12. The ball clutch devices each consists of an irregular]y-forined metal block 15, having an opening for the passage of the rods 13, a seat 16 of curved cross-section for a clutch-ball 17, and an opening 18, extending from the seat through the block and substantially parallel with said seat, and a screw or nut. 19, threading in. the screwthreaded portion of said opening 18 and having an. in terior depression 20, in which a spiral spring 21 partially seats, as shown in Fig. 3. The spiral spring 21 bears against the ball 17 and retains it in clutching position with a spring tension. The object in employing a screw or nut 19 is not only to provide means for varying the tension of the spring relatively to the ball, but also to afford a convenient way for removing the spring by taking out the screw and spring through the opening 18, so that the balls can be easilyplaced in orwithdrawn from their position. The opening 18 at the end next to the ball-seat 16 and for a short distance only is reduced in diameter, so that it will be practically of the same size as the depression. 20 in the screw 19, substantially as shown at 18 in Fig. 3. The object of this is to provide a supporting-wall for holding that portion of the spring projecting from the depression 20 and pressing against the ball from lateral movement, and thus prevent it from being twisted or turned by the rolling of the clutch-ball. The blocks 15 are secured in their adjusted position on the rods 13 by lock-nuts (See Fig. 2.)

A ball clutch device similar to that heretofore described is secured on a rod 23, which has one end fitted through and secured in an. opening in a projection 24, which extends horizontally out from the top of the body.

erating-clutches are returning from the end of one clutch stroke to the beginning of the next.

A sleeve which has an enlarged interiorlyscrew-threaded part 26 threaded upon the reduced screw-threaded portion 2 of the body has an intermediate portion 27, having an opening of lesser size than the part 26 and provided with a smooth interior annular part 28 at the opposite end, having an interior opening of lesser diameter than the portion 27, forms an inclosing case for a rotary valveblock 29. The valve-block 29 is rotatably supported Within the intermediate portion 27 and is held in place therein between the end surface of the reduced portion 2 and the inner end of a tubular nut or union 30, which is screwed into the part 28, as shown in Fig. 2. The opposite or outer end of the nut or union 30 is threaded and is secured in abutting position to a three-way valve or cock 31 by a screw-threaded sleeve 32. The three way valve 31 is of the usual and well-known form, as shown in Fig. 1 1. The rotary valveblock 29 has two depressions or openings 33 near its center, as shown in Figs. 2 and 6, and the inner end of the shaft is likewise provided with two similar openings, as shown in Figs. 2 and 10, and two pins 34 are fitted in these openings, as shown in Fig. 2, and serve to lock the block 29 to the shaft. The block 29 is provided on one of its faces with two elongated and curved or angularly-extending grooves 35 and 36, as shown in Fig. 6. Both of these grooves curve concentrically with the circular periphery of the valve-block, and the groove 35 has an additional straight part 37, which extends radially inward from one end thereof. An opening 38 extends through the block from approximately the center of the groove 36, which serves as an entranceport for the compressed air to the groove 36. An opening 39 extends on a curve through the reduced portion 2, the outer extremity of which is enlarged and screw-threaded for the attachment of an air-conducting pipe for conducting the compressed air to the desired device and the inner end of which registers with the curved grooves 35 and 36. An opening 40 extends through another part of the reduced portion 2 and registers at its upper end with a peripheral groove 41 in the shaft 4, and an opening 42 leads longitudinally from the groove 40 through the inner end of the shaft, where it connects with the inner extremity of the radial part 37 of the groove 35 through the comparatively large opening 37 a between the shaft end and the face of the valve-block. (See Fig. 2.)

A fine-wire screen 43, which is substantially flat, is arranged in the inner end of the tubular nut30 and serves to prevent the passage of the dirt or dust to the valve-block, which would create friction and also cause the block to wear.

An inclosing case 44, fitted over the clutch mechanism, is secured to the body in any wellknown way. This inclosing case 44 is cut away at 45, as shown in Fig. 5, to permit the oscillation of the clutch-operating lever 14, and a curved inclosing part 46 is mounted on the lever and serves to close the opening left by the cut-away portion. A clamp 47 is fastened to the lever and has a bifurcation 48, between the forks of which a block attached to the end of a connecting-rod 49 is pivoted by a pin 50. The clamp can be moved longitudinally on the lever to regulate the stroke of the same. The rod 49 connects to any suitable power for oscillating the lever. The inclosing case 44 is also provided with a hole 51, through which the friction mechanism is oiled. This hole is normally closed by a cover 52.

The operation of the valve is as follows: The compressed air is admitted into the groove 36 through the opening 38, and from thence passes through the opening 39 into the air-conducting pipe attached thereto dur ing the time that the passage from the groove 36 in the opening 39 is open. The admittance of the compressed air is shut OK as soon as the end of the groove 36 passes the opening 39, and an exhaust-passage is provided for the air in the opening 29 and the air-conducting pipe leading therefrom as soon as the groove 36 comes into communication with the opening 29. The air in exhausting passes from the opening 29 through the groove 35 and its straight part 37 into the space 37 from thence through the opening 42 in the end of the shaft 4 into the groove 41 of the shaft, and out through the opening 40 in the reduced portion 2.

I claim as my invention 1. A device of the class described, having a body provided with a reduced portion, a sleeve fitted to said reduced portion, a rotary valve-block in said sleeve having two curved grooves on one of its faces and an opening extending from one of said grooves through the block, a shaft journaled in the body and operatively connected to the valve-block; said shaft having an exhaust-opening connecting with the other groove in the block and'means for intermittently rotating said shaft.

2. In a device of the class described, a tubular body provided with a lateral exhaustopening, and a reduced portion, a shaft j ournaled in said body and having a peripheral groove registering with the exhaust-opening, a sleevefitting upon the reduced portion of the body, a rotary valve-block inclosed in the sleeve and connected to the shaft to rotate in unison therewith, said rotary valve-block being provided on one of its faces with elongated grooves which curve concentrically with the circular periphery of the valve-block and one of said grooves having an additional straight part which extends radially inward and an opening which extends through the and connected to the shaft to rotate in unison block from the other groove, substantially as therewith, said rotary valve block bein set forth. provided on one of its faces with elongated 3. In a device of the class described, a tucurved grooves and an openingwhichextends 5 bular gody groviided with an fixhaustmpen I through the block, substantially as set forth. 15

ing an a re use portion, a s aft journa e r in said body and having a peripheral groove CHARLES MANAEL' registering with the exhaust-opening, a sleeve Witnesses: fitting upon the reduced portion of the body, L. M. SANGsTER, 10 a rotary valve-block inclosed in the sleeve GEO. A. NEUBAUER. 

